"Since August 2010, we made a mutual decision to take time apart from our romantic relationship," she wrote. "Throughout this time we have continued to work together hand in hand, have remained close and have kept the details absolutely private until now."

However, the split could be short lived. She recalled the time with her investment banker ex as "the most wonderful years of our lives" and made clear that the break up is more a temporary "period of separation" and that they will continue to maintain both personal and professional relationships.